<?xml version="1.0" encoding="utf-8" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
       targetNamespace="urn:ietf:params:xml:ns:watcherinfo"
       xmlns:tns="urn:ietf:params:xml:ns:watcherinfo" >
  <!-- This import brings in the XML language attribute xml:lang-->
  <xs:import namespace="http://www.w3.org/XML/1998/namespace"
             schemaLocation="http://www.w3.org/2001/03/xml.xsd" />
  <xs:element name="watcherinfo">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="tns:watcher-list" minOccurs="0"
                    maxOccurs="unbounded"/>
        <xs:any namespace="##other" processContents="lax" minOccurs="0"
                maxOccurs="unbounded"/>
      </xs:sequence>
      <xs:attribute name="version" type="xs:nonNegativeInteger"
                    use="required"/>
      <xs:attribute name="state" use="required">
        <xs:simpleType>
          <xs:restriction base="xs:string">
            <xs:enumeration value="full"/>
            <xs:enumeration value="partial"/>
          </xs:restriction>
        </xs:simpleType>
      </xs:attribute>
    </xs:complexType>
  </xs:element>
  <xs:element name="watcher-list">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="tns:watcher" minOccurs="0" maxOccurs=
         "unbounded"/>
        <xs:any namespace="##other" processContents="lax"
                minOccurs="0" maxOccurs="unbounded"/>
      </xs:sequence>
      <xs:attribute name="resource" type="xs:anyURI" use="required"/>
      <xs:attribute name="package" type="xs:string" use="required"/>
    </xs:complexType>
  </xs:element>
  <xs:element name="watcher">
    <xs:complexType>
      <xs:simpleContent>
        <xs:extension base="xs:anyURI">
          <xs:attribute name="display-name" type="xs:string"/>
          <xs:attribute name="status" use="required">
            <xs:simpleType>
              <xs:restriction base="xs:string">
                <xs:enumeration value="pending"/>
                <xs:enumeration value="active"/>
                <xs:enumeration value="waiting"/>
                <xs:enumeration value="terminated"/>
              </xs:restriction>
            </xs:simpleType>
          </xs:attribute>
          <xs:attribute name="event" use="required">
            <xs:simpleType>
              <xs:restriction base="xs:string">
                <xs:enumeration value="subscribe"/>
                <xs:enumeration value="approved"/>
                <xs:enumeration value="deactivated"/>
                <xs:enumeration value="probation"/>
                <xs:enumeration value="rejected"/>
                <xs:enumeration value="timeout"/>
                <xs:enumeration value="giveup"/>
                <xs:enumeration value="noresource"/>
              </xs:restriction>
            </xs:simpleType>
          </xs:attribute>
          <xs:attribute name="expiration" type="xs:unsignedLong"/>
          <xs:attribute name="id" type="xs:string" use="required"/>
          <xs:attribute name="duration-subscribed"
              type="xs:unsignedLong"/>
          <xs:attribute ref="xml:lang"/>
        </xs:extension>
      </xs:simpleContent>
    </xs:complexType>
  </xs:element>
</xs:schema>